Learning objective

Clarify the process of enzyme action, focusing on the active site, the enzyme-substrate complex, and the roles of substrate and product.

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Exam focus

Cambridge IGCSE Combined ScienceEnzymesSupplement content

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Quick explanation

This point belongs to Enzymes, especially Enzymes outcomes.
You need to be able to clarify the process of enzyme action, focusing on the active site, the enzyme-substrate complex, and the roles of substrate and product.
The key ideas to know are Describe and Explain.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeExplain

Why it matters

This objective helps connect Enzymes outcomes to exam-style questions, flashcards, and revision notes for Enzymes.

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Practice Questions7 linked questions

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Paper 4Theory (Extended)2 marks

Description

Enzymes are proteins that catalyze biochemical reactions by forming an enzyme-substrate complex at their active sites.

a
Explain the significance of the active site in enzyme function.
Your answer
Aim for approximately 2 distinct marking points.
[2]

Revision notestopic notes

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